Bulletin d’avalanche

Kananaskis

Apr 17 – 20, 2025Avalanche Canada
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Archivé · expiré last year

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
Sans niveau
Sous la limite
Sans niveau

Points saillants

Forecasters are still finding good skiing on sheltered northerly aspects. Start your trip early and plan to be back at the trailhead before the daytime heating and/or solar radiation effects the snowpack. Check out Avalanche Canada's blog on Spring Conditions for some good tips.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2

    Wind slab were observed on all aspects in the alpine. These may be more sensitive to triggering where the underlying crust is prominent.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3.5

    Watch for sheltered northern areas where this layer may still exist. If triggered slabs could step down into the basal layers.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2

    Loose wet avalanches are not likely on Thursday given the cloudy and cool forecast, but be mindful that at this time of year any short bursts of solar radiation could be enough to trigger slides.

Confidence

High

Avalanche Summary

One recent sz 2.5 in the Miners Gully. Likely cornice triggered.

Snowpack Summary

Wind slabs are evident in the alpine on all aspects. While these slabs are not deep, they could be sensitive to triggering where the underlying surface is a smooth crust. Otherwise, expect a melt-freeze surface layer (or near surface) on all solar aspects as well as all aspects at lower elevations. Higher elevation northerly aspects still hold dry snow. Cornices are starting to sag in the mid-April heat, and some recent collapses have been observed.

Timing is everything. As surface crusts break down during the day the stability will begin to decrease. Start early and finish early.

Weather Summary

Friday looks to be mainly clear with a daytime high of -3C and freezing levels around 2300m. No new snow is foreast and winds are expected to be light out of the NW.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Even brief periods of direct sun could produce natural avalanches.
  • Avoid shallow snowpack areas, rocky outcrops, and steep terrain where triggering is most likely.
  • Wind slabs are isolated, but may remain reactive.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.

Régions couvertes